Adding cbr support for Opus

webrtc/media/base/mediaconstants.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 35 matching lines @@
 const char kDtmfCodecName[] = "telephone-event";
 
 // draft-spittka-payload-rtp-opus-03.txt
 const char kCodecParamPTime[] = "ptime";
 const char kCodecParamMaxPTime[] = "maxptime";
 const char kCodecParamMinPTime[] = "minptime";
 const char kCodecParamSPropStereo[] = "sprop-stereo";
 const char kCodecParamStereo[] = "stereo";
 const char kCodecParamUseInbandFec[] = "useinbandfec";
 const char kCodecParamUseDtx[] = "usedtx";
+const char kCodecParamUseCbr[] = "cbr";
 const char kCodecParamMaxAverageBitrate[] = "maxaveragebitrate";
 const char kCodecParamMaxPlaybackRate[] = "maxplaybackrate";
 
 const char kCodecParamSctpProtocol[] = "protocol";
 const char kCodecParamSctpStreams[] = "streams";
 
 const char kParamValueTrue[] = "1";
 const char kParamValueEmpty[] = "";
 
 const int kOpusDefaultMaxPTime = 120;
 const int kOpusDefaultPTime = 20;
 const int kOpusDefaultMinPTime = 3;
 const int kOpusDefaultSPropStereo = 0;
 const int kOpusDefaultStereo = 0;
 const int kOpusDefaultUseInbandFec = 0;
+const int kOpusDefaultUseCbr = 0;
 const int kOpusDefaultUseDtx = 0;
 const int kOpusDefaultMaxPlaybackRate = 48000;
 
 const int kPreferredMaxPTime = 120;
 const int kPreferredMinPTime = 10;
 const int kPreferredSPropStereo = 0;
 const int kPreferredStereo = 0;
 const int kPreferredUseInbandFec = 0;
 
 const char kRtcpFbParamNack[] = "nack";
@@ skipping 23 matching lines @@
 
 // RFC 6184 RTP Payload Format for H.264 video
 const char kH264FmtpProfileLevelId[] = "profile-level-id";
 const char kH264FmtpLevelAsymmetryAllowed[] = "level-asymmetry-allowed";
 const char kH264FmtpPacketizationMode[] = "packetization-mode";
 const char kH264FmtpSpropParameterSets[] = "sprop-parameter-sets";
 const char kH264ProfileLevelConstrainedBaseline[] = "42e01f";
 
 const int kDefaultVideoMaxFramerate = 60;
 }  // namespace cricket